7408443221 has 8 divisors (see below), whose sum is σ = 7801474560. Its totient is φ = 7021322352.

The previous prime is 7408443187. The next prime is 7408443227. The reversal of 7408443221 is 1223448047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7408443221 - 2⁶ = 7408443157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7408443227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475045 + ... + 1480058.

It is an arithmetic number, because the mean of its divisors is an integer number (975184320).

Almost surely, 2^7408443221 is an apocalyptic number.

It is an amenable number.

7408443221 is a deficient number, since it is larger than the sum of its proper divisors (393031339).

7408443221 is a wasteful number, since it uses less digits than its factorization.

7408443221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2955235.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 7408443221 is about 86072.3139052274. The cubic root of 7408443221 is about 1949.4360166932.

The spelling of 7408443221 in words is "seven billion, four hundred eight million, four hundred forty-three thousand, two hundred twenty-one".